I tried to upgrade from 10.04 to 10.10 - now that Ubuntu 10.10 is finally released. I used update-manager -d and the first window after pressing the upgrade button says that it is still a development release.

5 Answers
5

update-manager -dis the command to upgrade to development trunk versions of Ubuntu.

However, I think I recall Ubuntu updates the repositories to notify about the new release a few days after the release is live so that when people are prompted to upgrade, the bandwidth use spike from the day 1 enthusiasts has been fully absorbed. By using that route, you should still end up with a copy of "blessed" Ubuntu 10.10.